SM3414B

Optical encoder IC

1. SM3414B Package outline drawing

General tolerance： ±0.1

SM3414B_pin assign&Land pattern_DIMJ240021-DE220212-RLJ240031-E002

2024.04-1-

SM3414B

Optical encoder IC

2. Pin assignment

MON2116PDN

MON1215VDD

RSTN

314PASEN

413PB

CLK

512VSSDATAIN

611

LED_CONDATAOUT

710RLEDO

LED_VDD

89NC

TOP View

Pin No.

Name

I/O

Description

1Name

MON2Name

2TypeMON1TypeOO

Internal signal monitor output pin 2
Internal signal monitor output pin 13RSTN

I

Register reset and power-down pin (Pull-down pin, Active-Low)

4

SEN

I

Serial interface enable signal (Pull-up pin, Active-Low)

5

CLKI

Serial interface clock signal input pin

6DATAINI

Serial interface data input pin

7

DATAOUTO

Serial interface data output pin

8

LED_VDDS

LED power supply pin

9NC-No connection

10RLEDOO

LED current control resistor connection pin

11

LED_CONI

LED current adjustment pin

12VSS

S

Ground pin

13PBO

14

PAO

Incremental signal phase B output pin
Incremental signal phase A output pin

15

VDDSPower supply pin

16PDNI

Absolute function power-down pin (Pull-down pin, Active-Low)

Descript Descriptiionon[Type] I: Input pin, O: Output pin, S: Power supply pin

SM3414B_pin assign&Land pattern_DIMJ240021-DE220212-RLJ240031-E002

2024.04-2-

SM3414B

Optical encoder IC

3. Recommended land pattern

Unit : mmGeneral tolerance： ±0.1

SM3414B_pin assign&Land pattern_DIMJ240021-DE220212-RLJ240031-E002

2024.04-3-

SM3414B

Optical encoder IC

Please pay your attention to the following points at time of using the products shown in this document.

1. The products shown in this document (hereinafter ”Products”) are designed and manufactured to the generally accepted
standards of reliability as expected for use in general electronic and electrical equipment, such as personalequipment, machine tools and measurement equipment. The Products are not designed and manufactured to be usedin any other special equipment requiring extremely high level of reliability and safety, such as aerospace equipment,
nuclear power control equipment, medical equipment, transportation equipment, disaster prevention equipment,
security equipment. The Products are not designed and manufactured to be used for the apparatus that exerts harmful
influence on the human lives due to the defects, failure or malfunction of the Products.
If you wish to use the Products in that apparatus, please contact our sales section in advance.
In the event that the Products are used in such apparatus without our prior approval, we assume no responsibility
whatsoever for any damages resulting from the use of that apparatus.
2. NPC reserves the right to change the specifications of the Products in order to improve the characteristics or reliability
thereof.
3. The information described in this document is presented only as a guide for using the Products. No responsibility isassumed by us for any infringements of patents or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any patents or other rights of the third parties. Then, we assume
no responsibility whatsoever for any damages resulting from that infringements.
4. The constant of each circuit shown in this document is described as an example, and it is not guaranteed about its valueof the mass production products.
5. In the case of that the Products in this document falls under the foreign exchange and foreign trade control law or otherapplicable laws and regulations, approval of the export to be based on those laws and regulations are necessary.
Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate
government agencies.

SEIKO NPC CORPORATION
2-9-4, Taito, Taito-ku, Tokyo
110-0016, Japan
Telephone: +81-3-6747-5300
Facsimile: +81-3-6747-5303
https://www.npc.co.jp/
Email:sales@npc.co.jp

SM3414B_pin assign&Land pattern_DIMJ240021-DE220212-RLJ240031-E002

2024.04-4-